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Quick review on streptococcal skin infections. 

Images from dermnet.nz

#diagnosis #clinical #differential #dermatology #skinrash #skin
streptococcal skin infections ... #diagnosis #clinical ... #differential # ... dermatology #skinrash
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
• Bleomycin Hematologic ... • Sickle Cell Anemia ... Cryoglobulinemia Infectious ... Ulcers #ulcerative #skinrash ... #dermatology #Differential
Necrotizing Fasciitis: Note the extensive edema, erythema, bullae formation, and necrosis in this patient's thigh. At
failure) with severe pain ... at the site of infection ... Images #Clinical ... #Photo #Dermatology ... #SkinRash #Necrotizing
Necrotizing Fasciitis: African-American patient with diabetes that predisposed him to rapidly 
progressive infection. Lower extremity is
progressive infection ... As the infection ... of illness and pain ... #Photo #Dermatology ... #Leg #SkinRash
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Clinical Presentation ... • Symptoms of anemia ... younger pts) Differential ... chills, flank pain ... #hematology #diagnosis
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Normal: < 1% Clinically ... Neutrophil (Normal) Differential ... likelihood of negative clinical ... #differential # ... neutrophil #WBC #CBC #hematology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Differential ... Fever/Chills/Joint pain ... Effusions: - Hematologic ... Osteochondroma Hematologic ... #diagnosis #msk
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
- Arthritis Differential ... By: - Chronic Infection ... #Differential # ... Diagnosis #MSK # ... rheumatology #Monoarticular
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
., HIV), EBV infection ... Alcohol-induced pain ... : Pain in involved ... Etiology: - Infections ... #hematology
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Approach to Joint Pain ... Calcium oxalate Infectious ... Acute or chronic infections ... #MSK #rheumatology ... approach #workup #differential